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windows grou policy to block all websites

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I am using the group policy that Mozilla created and I can block individual websites, but I have been tasked to block all but 1 website. The server is a windows server 2012 and it will be used by multiple people at the same time with separate autonomous desktops. Also known as a terminal server or a remote desktop services host. Because of the fabric of our environment I have to use group policy to perform this. Can I do this, and how can I accomplish this through Firefox group policy? The attached picture is a copy of my attempt of blocking all of the sites.

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You can block every website by adding <all_urls> to the blocked websites policy. Then, to add the 1 website that you are permitting, you would add that to the website filter exceptions list.

Hope this helps.

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Chosen Solution

You can block every website by adding <all_urls> to the blocked websites policy. Then, to add the 1 website that you are permitting, you would add that to the website filter exceptions list.

Hope this helps.

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Thank you, that worked great!

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